So my almost 6m old has learned how to sit up. Over the last few days we've noticed that she tries to sit up in her car seat while strapped. The straps are tight, her shoulders are where they're supposed to be, the chest clip is high. I first noticed it last weekend while my husband was driving and I was in the back with her. She is able to get up enough that her head comes up as she leans forward. It makes me uncomfortable because I keep thinking if we were in an accident she could get hurt.

Is this normal? Am I just being a freaked out FTM? She's almost ready for the shoulder straps to be moved up but not there yet.